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Allen Bradley 140G MCB 140G-J3C4-C63

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140G-J3C4-C63

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The 140G-J3C4-C63 is a robust molded-case circuit breaker designed by Allen-Bradley. It operates at 63 amps of rated current and at a maximum current rating of 250 amps. It also features a substantial interrupting rating of 35 kA for effective fault protection.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 140G-J3C4-C63

ManufacturerAllen Bradley
Product TypeMolded Case Circuit Breaker
Product Line140G MCB
Part Number140G-J3C4-C63
Weight10.00 lbs (4.54 kg)
FrameJ
Amps250
Interrupting Rating35 kA
Protection TypeFixed Thermal/ Fixed Magnetic
Poles4
Current Range63 A
Rated Insulation Voltage1000V
Rated Impulse Withstand Voltage8 kV
Mechanical Life240 Operations/hr.
Electrical Life120 Operations/hr.
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The Allen-Bradley 140G-J3C4-C63 is a molded case circuit breaker for safeguarding electrical systems. It operates in a type J frame and supports a maximum current rating of 250 amps. Designed for substantial fault interruption, it possesses an interrupting rating of 35 kA, ensuring dependable protection in industrial environments.

The device features four poles, providing versatility for various applications. Its fixed thermal and magnetic protection mechanisms offer reliable circuit protection from overload and short-circuit events. The circuit breaker operates with 63 amps of rated current while maintaining consistent performance.

Additionally, the 140G-J3C4-C63 is rated for 1000 volts of insulation voltage and is suitable for high-voltage scenarios. It is also capable of withstanding impulse voltages of up to 8 kV, which enhances its utility in fluctuating electrical conditions. This circuit breaker weighs 7.72 pounds, making it durable and easy to install.

With a mechanical life rating of 240 operations per hour and an electrical life rating of 120 operations per hour, it is engineered for durability and efficiency. The 140G-J3C4-C63 is an essential component for maintaining safety and performance in various electrical systems.

Revision Part #Also known as
140G-J3C4-C63 Ser A140G-J3C4-C63/A, Series A, Rev A
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